Home / 15,182.09-20,951.40-8,468.15

Finding the Fourth Proportional to 15,182.09, 20,951.40 and 8,468.15

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Solution

The fourth proportional to 15,182.09, 20,951.40 and 8,468.15 is: 11,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,182.09 : 20,951.40 = 8,468.15 : x
  2. Step 2: Convert to fraction form
    15,182.09/20,951.40 = 8,468.15/x
  3. Step 3: Cross multiply
    15,182.09x = 20,951.40 × 8,468.15
  4. Step 4: Simplify right side
    15,182.09x = 177,419,597.91
  5. Step 5: Solve for x
    x = 177,419,597.91/15,182.09
  6. Step 6: Final answer
    x = 11,686.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.